Isn’t all Shock the same?

No. There are several different kinds of Shock used in pools and spas.


Calcium Hypochloride Shock, DiChlor Shock, Peroxide based Shock, Potassium Monopersulfate Shock, each shock is required for different reasons.

Calcium Hypo. is best used in the Spring when opening your pool and during cooler weather- using this as your shock the entire season will contribute to high calcium levels and cloudy water. Calcium Hypo. is not a stabilized chlorine it does it’s job, then it’s gone. When temperatures rise switch to Dichlor Shock.

Dichlor is best used during the summer, when your pool is stable and clear. DiChlor is a stabilized chlorine it stays in your water longer.

Peroxide based Shock is a shock for the pools owners that do not want to use Chlorine in their pool. Advantages for Peroxide based Shock, softer water and skin, longer life on pool liners.

Potassium Monpersulfate is a trouble shooting shock often used to treat a chlorine demand. When your total chlorine and free chlorine levels are not equal you probably have a chlorine demand. Potassium Monopersulfate can correct this.


DiChlor is the shock that we recommend for spas. It’s the most economical and is easy to maintain.

Bromine Shock is similar in price to DiChlor but is harshest on the skin, and has a distinct musty odor.

Salt based low Chlorine, for those who like the skin softness salt brings and low corrosive to spa jets and pumps.

Peroxide based Shocks for the spa users who do not want to use chlorine. More expensive than chlorine but also easy to maintain.

Among these different types, there are different strengths. The Water Hole will have the strongest Shock available. Always check the strength of your Shock. The higher the level the less you have to use, you’ll save money and frustration. Bring a pool water sample in today and we will be happy to help you with choose the correct shock for your personal needs.